class Solution { public boolean solution(boolean x1, boolean x2, boolean x3, boolean x4) { boolean answer = false; if((x1||x2)&&(x3||x4)) answer = (x1||x2)&&(x3||x4); return answer; }}

import java.util.*;class Solution { public ArrayList solution(int[] arr) { ArrayList stk = new ArrayList(); for(int i=0;i=arr[i]){ stk.remove(stk.size()-1); } stk.add(arr[i]); } return stk; }}

import java.util.*;class Solution { public ArrayList solution(int start_num, int end_num) { ArrayList answer = new ArrayList() ; for(int i=start_num;i

import java.util.*;class Solution { public int[] solution(int[] arr, int[][] queries) { int[] answer = new int[queries.length]; for(int i=0;iarr[j]){ min = arr[j]; } } } answer[i]=min; } return answer; } }    import java.util.*;class Solution { public int[] solution(int[..

class Solution { public int[] solution(int[] arr, int[][] queries) { for(int[] query: queries){ int temp = arr[query[0]]; arr[query[0]] = arr[query[1]]; arr[query[1]]=temp; } return arr; }}

import java.util.*;class Solution { public int[] solution(int l, int r) { ArrayList arr = new ArrayList(); String reg ="^[05]+$"; // String reg ="^[^12346789]*$"; for(int i=l;i0){ int result[] = new int [arr.size()]; for(int i=0;i

SELECT USER_ID, PRODUCT_IDfrom ONLINE_SALEgroup by user_id, product_idhaving count(*)>=2order by USER_ID, PRODUCT_ID desc

class Solution { public int solution(int n, String control) { int answer = 0; for(int i=0;i